-5x + y = -1x
10x - 2y = 2
Answers
Answer: Below is the first one
Step-by-step explanation: Second one is right here x=1/5+y/5
Related Questions
2c +3= -11
Remember:
Answers
Answer:
-7
Step-by-step explanation:
Hey there
Let's solve your equation step-by-step.
2c+3=−11
Step 1: Subtract 3 from both sides.
2c+3−3=−11−3
2c=−14
Step 2: Divide both sides by 2.
2c/2 = -14/2
c=−7
Have a wonderful day
Write the following expression in exponential form: (2 points) 4.5 × 4.5 × 4.5 × 4.5 × 4.5 × 4.5 × 4.5
Answers
Answer:
The answer is [tex]4.5^7[/tex]
Step-by-step explanation:
This is because there are 7 copies of the same number and that means you have to put 7 at the exponential part of it. Then you have to put the original number under the exponential spot. Therefore, the answer is [tex]4.5^7[/tex].
Jim buys a skateboard for $200. The value of the skateboard depreciates by 15% each year
since buying it. Create a function to represent the value of the skateboard, f(2), in dollars,
after 3 years since buying it.
Answers
Answer: f(x)=200•(0.85)^x
Step-by-step explanation:
C(t) is the actual value of the function at time t
Co is the initial value of C at t=0
r is the decaying rate, expressed in decimal
Depreciation is often modeled as an exponential decay function. Since Jim bought a skateboard for Co=$200, its value will depreciate by r=15% = 0.15 each year since buying it.
Given m ||n, find the value of x.
(7X+9)
(9x+5)°
Answers
Answer:
x = 2Step-by-step explanation:
(7x + 9)° is corresponding angle to (9x + 5)° angle
Therefore:
m║n ⇒ (7x + 9)° = (9x + 5)°
(7x)° + 9° = (9x)° + 5° {subtract (7x)° from both sides}
9° = (2x)° + 5° {subtract 5° from both sides}
4° = (2x)° {divide both sides by 2°}
x = 2
What is the perimeter, in terms of x, of the triangle shown here?
(7x2 - 12)
(-5x + 30)
(3x2 + 4x)
Answers
Answer:
The perimeter of triangle is: [tex]\mathbf{10x^2-x+18}[/tex]
Step-by-step explanation:
We need to find perimeter, in terms of x, of the triangle shown here.
The length of side 1: [tex](7x^2 - 12)[/tex]
The length of side 2: [tex](-5x + 30)[/tex]
The length of side 3: [tex](3x^2 + 4x)[/tex]
The formula used to find perimeter of triangle is: [tex]Perimeter\: of\: triangle=Sum\:of\:length\:of\:all\:sides[/tex]
Putting values and finding perimeter:
[tex]Perimeter\: of\: triangle=Sum\:of\:length\:of\:all\:sides\\Perimeter\: of\: triangle=(7x^2 - 12)+(-5x + 30)+(3x^2 + 4x)\\Perimeter\: of\: triangle= 7x^2-12-5x+30+3x^2+4x\\Perimeter\: of\: triangle=7x^2+3x^2-5x+4x-12+30\\Perimeter\: of\: triangle=10x^2-x+18[/tex]
So, The perimeter of triangle is: [tex]\mathbf{10x^2-x+18}[/tex]
pls help due asap
:..
Answers
Answer:
a
Step-by-step explanation:
PLEASE, PLEASE HELP D:
write the linear equation given :
1. slope = 1/4; y-intercept =7
2. slope = -3; y-intercept = 2/3
3. slope = 2/3; y-intercept = 2/3
4. slope = -2; y-intercept = -1/2
5. slope = -3/4; y-intercept = -3
Answers
Answer:
1. y =1/4x + 7
2.y =-3x + 2/3
3. y =2/3x + 2/3
4.y =-2x - 1/2
5.y =-3/4x -3
Step-by-step explanation:
By using the slope- intercept form of the equation, y=mx + b, where m=slope and b=y-intercept, you can substitute the values of slope and the y-intercepts into the formula y=mx + b
Which expression is equivalent to 3k + 5l + 6l + 2k?
A) 8k + 8l
B) 5k + 11l
C) 5k
D) 16
Answers
Answer:
B)5k + 11l
Step-by-step explanation:
3k + 5l + 6l + 2k collect like terms
3k + 2k + 5l + 6l
5k + 11l
hope it's helpful ❤❤❤❤
THANK YOU.
The expression is equivalent to the given expression is 5k+11l. Therefore, option B is the correct answer.
What is an equivalent expression?Equivalent expressions are expressions that work the same even though they look different. If two algebraic expressions are equivalent, then the two expressions have the same value when we plug in the same value for the variable.
The given expression is 3k+5l+6l+2k.
Group like terms and simplify, we get
(3k+2k)+(5l+6l)
= 5k+11l
The expression is equivalent to the given expression is 5k+11l. Therefore, option B is the correct answer.
To learn more about an equivalent expression visit:
https://brainly.com/question/28170201.
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Simplify the expression: 5-−3ℎ −(6-+7ℎ)
a) 11-−4ℎ
b) 11-−10ℎ
c) −-−4ℎ
d) −-−10ℎ
Answers
Answer:
D
Step-by-step explanation:
Please help me with this one ☝️
Answers
Answer:
D
Step-by-step explanation:
add them together
Pls help I need help
Hehhehrhrh
Answers
Answer:
C) 11.4
Step-by-step explanation:
When graphing and using the slope-intercept equation, the slope top number tells us to do what? and the bottom number tells us to do what?
Answers
Answer:
Rise over Run
Step-by-step explanation:
The slope and y-intercept values indicate characteristics of the relationship between the two variables x and y. The slope indicates the rate of change in y per unit change in x. The y-intercept indicates the y-value when the x-value is 0.
11. What is the perimeter of the top of a square pizza box that just manages to hold a circular pizza whose radius is 70 cm?
Answers
Hayley's birthday party will cost $27 if she invites 3 guests. How many guests
can there be, at most, if Hayley can afford to spend a total of $36 on her
birthday party? Assume the relationship is directly proportional.
Answers
Answer:
imma say 12 guests
Step-by-step explanation:
sorry if wrong
−14.4=−0.6p
I’m bisexual
Answers
nice :) good for u, wish i could just say that straight up lol
please help due asap
dbhdhdhdjdlvdbx
Answers
Answer:
E
Step-by-step explanation:
4. One number is 16 more than another. The ratio of the smaller number to
the larger number is 3: 7. What is the value of the smaller number?
Answers
Answer:
12
Step-by-step explanation:
So if the difference between the two number is 16 and the distance between the two numbers in the ratio is 4, that means the real numbers are 4 times greater than the ratio (because 4 * 4 = 16).
This means that you can multiply both sides of the ratio by 4 to get the two numbers 3: 7 --> 3*4: 7 * 4 --> 12: 28.
This means that the smaller number is 12.
hope that makes sense!
what is the percent rate of change in function y = (0.98) ^ x? determine whether the function represents exponential growth or exponential decay
Answers
C. 2%; exponential decay
You can use the fact that increasing power of values lying between 0 and 1 results in less and less values.
The percent rate of change in given function is -2%
The function represents exponential decay.
Given that:The function: [tex] y = (0.98) ^ x[/tex]To find:Percent rate of change in given function.Is it representing exponential growth or exponential decay?Finding percent rate of change in given function:
For finding this, first find how much the output y changes if we change x from x to x + 1.
Output when x = x: [tex]y = (0.98)^x[/tex]
Output when x = x+1: [tex]y = (0.98)^{x+1}[/tex]
Difference in output if x goes from x to x+1: [tex](0.98)^{x+1} - (0.98)^x = (0.98)^x(0.98 - 1) = -0.02 \times (0.98)^x[/tex] (this change occurs if we increase input x by 1 unit, thus this also represents the rate)
Rate of change of function per unit increment = [tex]-0.02 \times (0.98)^x[/tex]
The percentage of rate of change is found as:
[tex]\text{Percent rate of change\:} = \dfrac{\text{Rate of change} \times 100}{\text{previous value}} = \dfrac{-0.02 \times (0.98)^x \times 100}{(0.98)^x} \\\\ \text{Percent rate of change\:} = -2\%[/tex]
Thus, the percent rate of change is -2%
The negative sign shows that the value is decreasing, thus showing that function shows exponential decay.
Learn more about exponential growth or decay here:
https://brainly.com/question/11743945
What is the absolute value of -7?
1/7
-1/7
-7
7
Answers
Answer:
7 :)
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
plz help me
(a²-b²)²+a²b²
factorise
plzz
Answers
Answer:
a^4+b^4−a^2b^2
Step-by-step explanation:
A farmer bought 36 ducks and 52 pigeons. Approximately how many birds did the farmer buy?
Answers
Carly walks 30 feet in seven seconds. At this rate, how many minutes will it take for Carly
to walk a mile if there are 5,280 feet in one mile? Round your answer to the nearest tenth
of a mile.
Answers
A bike is on sale for 45% off of the regular price. If the sale price is $299.75, what was the original price?
Answers
299.75/.45=666.11
since you’re looking for original price instead of the price on sale, you would do the opposite which is to divide.
Answer:
the original price is 545$
Step-by-step explanation:
299.75$ : 55$ = x : 100
55x = 299.75 x 100
55x : 29975
divide 29975 by 55 =
545
Which graph best represents a function with range -4 ≤ y ≤ 3?
Answers
Answer:
3rd one
Step-by-step explanation:
The range of a function is the set of output values the function can take
The graph that represents the range [tex]-4 \le y \le 3[/tex] is graph (b)
The range of the function is given as:
[tex]-4 \le y \le 3[/tex]
The above inequality can be rewritten as:
[tex][-4,3][/tex]
This means that,
The output values start from -4 and ends at 3 (inclusive).The endpoints are closed values at -4 and 3The graph that represents this range is graph (b)
Read more about range at:
https://brainly.com/question/10878781
an = -15 + 5(n – 1)
Find the 21st term of the sequence.
Answers
Answer:
[tex]a21 = - 15 + 5(21 - 1) \\ = - 15 + 105 - 5 \\ = 85[/tex]
85 the 21st term of the sequence.
What is Arithmetic progression?An arithmetic progression or arithmetic sequence is a sequence of numbers such that the difference between the consecutive terms is constant.
here, we have,
an = -15 + 5(n – 1)
so,
a_21= -15+(21-1)5
=-15+100
=85
Hence, 85 the 21st term of the sequence.
To lean more on Arithmetic progression click:
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Find the area of the shape shown below plz help
Answers
Answer:
60? I'm really not sure mate, i'm really sorry if it's wrong.
Step-by-step explanation:
Please please please help!! I need this URGENT
Dan buys a car for £2700.
It depreciates at a rate of 1.4% per year.
How much will it be worth in 5 years?
Give your answer to the nearest penny where appropriate.
Answers
Answer:
So it depreciates at a rate of 1.4% so 25% a year and you do £2700 multiply by 25 each year £2700 multiply by 25 x 5 = £540 in 5 years
Step-by-step explanation:
Answer:
£
2516.22
Step-by-step explanation:
£
2516.22
HAAAAAAALLLLLLLP
7th Grade IXL
Answers
Answer: This is middle school math?! Man I feel bad for you...
First one: ZZXY
Middle one: ZYXZ
Last one: ZXZY
Answer:
mark the other guy brainliest I answer so he can get it
Step-by-step explanation:
The slope of the line below is -3. Use the coordinates of the labeled point to
find a point-slope equation of the line.
Answers
Answer: y+7= 3(x-5) C
Step-by-step explanation:
PLEASE HELP ME! THANK YOU IF YOU DO!
Answers
Answer:
100,000 ÷ 1.25
100,000/1.25
80,000/1
80,000
The unit cost of the piece of land is 80,000 per hectare
Step-by-step explanation:
